It may be hard to make the case that anyone or anything helped Wall Street as stocks lost about 4 percent of their value and the Dow Jones industrial average tumbled 1,175 points -- after a 666-point decline on Friday.

China's growing throng of affluent consumers is driving a rebound in demand for gold rings, bracelets, and necklaces as a property boom and high stock market valuations boost wealth in the largest bullion market.

WASHINGTON -- Digital currencies such as bitcoin demand increased oversight and may require a new federal regulatory framework, the top U.S. markets regulators will tell lawmakers at a congressional hearing on Tuesday.